import java.util.Scanner;

public class UppercaseToLowercase {
    public static void main(String[] args) {
        Scanner in=new Scanner(System.in);
        while (in.hasNextLine()){
            String s=in.nextLine();
            if(Character.isUpperCase(s.charAt(0))){
               char  c=(char)(s.charAt(0)+32);
            }
        }
    }
}
